Figure 3.
USP1 Contributes to DNA Damage Tolerance
(A) Cellular sensitivity to DNA-damaging agents as determined by colony survival assay. The top left shows cisplatin, and the top right shows mitomycin C (MMC). The bottom left shows UV, and the bottom right shows X-rays. Error bars represent one standard deviation (SD).
(B) Propidium iodide cell-cycle analysis of wild-type DT40 and ΔUSP1 after exposure to different doses of cisplatin for 12 or 24 hr. 2N represents the G1 peak and 4N represents the G2/M peak.